Authorities in Northern California made a snappy discovery during a routine probation check: An alligator-like reptile named "Mr. Teeth," who was apparently protecting a stash of marijuana.

When Alameda County Sheriff's deputies entered the Castro Valley home on Tuesday, they not only found 34 pounds of marijuana valued at an estimated $100,000, but also the 5-foot-long caiman inside a Plexiglas tank guarding it in a bedroom.

Caimans are usually found in the wetland regions of Central and South America. They're considered close relatives of alligators.

"We get guard dogs all the time when we search for grow houses and people stashing away all types of dope. But alligators? You just don't see that every day," Sgt. J.D. Nelson said Thursday.

Assif Mayar was arrested on suspicion of possessing marijuana for sale. He could also face citations from the California Fish and Game Commission, including possession of an exotic animal without a permit.